British singerLeona Lewis hasallegedly been assaulted at an autobiography signing event in thePiccadilly region ofLondon, England.

The singer, who rose to fame after winning series3 of The X Factor UK, was at a Waterstone’s bookspecialist store in the to sign copies of her new autobiography,entitled Dreams, for fans who attended when a fanallegedly “slapped” her on Wednesday.

A spokesperson for Scotland Yardhad confirmed that police were called to an incident in the area.However, said the spokesperson, “she did not require hospitaltreatment.” A spokesperson for Leona Lewis has also said that shewas “understandably shaken….Leona was a victim of an unprovokedattack this afternoon at her book signing,” said thespokesperson.

“The police were called immediately and medical attention hasbeen sought. Leona’s understandably badly shaken and apologises tothe fans she was unable to meet and complete signings for.”

Waterstone’s refused to reveal much information about theassault, however they have made a statement, saying: “There was anincident at our Leona Lewis signing this afternoon and the eventwas immediately stopped.

“We are now doing everything we can to support the police intheir enquiries. We take security at our book signings extremelyseriously and this is the first time anything of this nature hashappened. We would like to thank Leona for her professionalism andwe are extremely sad that this event was ruined for her, and herfans, many of whom queued from the early hours of the morning tomeet her.”

The singer was expected to appear on BBC Oneprogramme The One Show onWednesday night. However, the spokesperson for Lewis has nowconfirmed that her appearance has been cancelled.